.container {
width: 750px;
margin: 1em auto 0;
text-align: center;
}
 
 
.hidden { display: none; }
 
 
.notice * {
box-sizing: border-box;
}
 
.notice {
position: fixed;
bottom: 0;
left: 0;
right: 0;
z-index: 1;
}
 
.notice > .bg {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
z-index: 0;
background-color: black;
opacity: .85;
z-index: 1;
}
 
.notice > .content {
position: relative;
z-index: 1;
max-width: 1000px;
margin: 0 auto;
padding: 0 20px;
}
 
.notice > .content p,
.notice > .content a.close {
position: relative;
font-size: 1.3em;
line-height: 1.5em;
color: white;
}
 
.notice > .content a.close {
display: block;
float: right;
padding: 8px 10px;
margin: 0 0 0 1em;
border: 1px solid white;
text-decoration: none;
z-index: 1;
}
 
.notice > .content a.close:hover {
background-color: white;
color: black;
}